Store the Document's encoding on the Document

Source/web/WebDocument.cpp

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 65 matching lines @@
 
 WebSecurityOrigin WebDocument::securityOrigin() const
 {
     if (!constUnwrap<Document>())
         return WebSecurityOrigin();
     return WebSecurityOrigin(constUnwrap<Document>()->securityOrigin());
 }
 
 WebString WebDocument::encoding() const
 {
-    return constUnwrap<Document>()->encoding();
+    return constUnwrap<Document>()->encodingName();
 }
 
 WebString WebDocument::contentLanguage() const
 {
     return constUnwrap<Document>()->contentLanguage();
 }
 
 WebURL WebDocument::openSearchDescriptionURL() const
 {
     return const_cast<Document*>(constUnwrap<Document>())->openSearchDescriptionURL();
@@ skipping 205 matching lines @@
     m_private = elem;
     return *this;
 }
 
 WebDocument::operator PassRefPtr<Document>() const
 {
     return toDocument(m_private.get());
 }
 
 } // namespace WebKit